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214 is a composite number (with prime factorization 2 × 107) and a triacontakaiheptagonal number (37-gonal number). [1] 214!! − 1 is a 205-digit prime number. [2] Number of regions into which a figure made up of a row of 5 adjacent congruent rectangles is divided upon drawing diagonals of all possible rectangles. [3]
Euler used trial division, improving on Pietro Cataldi's method, so that at most 372 divisions were needed. [3] It thus improved upon the previous record-holding prime, 6,700,417, also discovered by Euler, forty years earlier. The number 2,147,483,647 remained the largest known prime until 1867. [4]
275 is the sum of fifth powers of the first two primes (2^5 + 3^5 = 275). 275 is the maximum number of pieces made by cutting an annulus with 22 cuts. [3] 275 is the smallest non semiprime that follows the equations n>1 and the greatest common denominator of n and b^n-b is 1 for some value of b. [4]
Area codes 214, 469, 972, and 945 are telephone area codes in the North American Numbering Plan (NANP) for Dallas, Texas and most of the eastern portion of the Dallas–Fort Worth metroplex The area codes are assigned in an overlay complex to a single numbering plan area that was the core of one of the original area codes of 1947, area code 214.
Any such symbol can be called a decimal mark, decimal marker, or decimal sign. Symbol-specific names are also used; decimal point and decimal comma refer to a dot (either baseline or middle ) and comma respectively, when it is used as a decimal separator; these are the usual terms used in English, [ 1 ] [ 2 ] [ 3 ] with the aforementioned ...
This is a list of the names of small decimal numbers in English. Table The ... 10 −9: 1×10 −9: One One-Billionth: One One-Milliardth: nano-n: 10 −12:
272 (two hundred [and] seventy-two) is the natural number after 271 and before 273. Properties. 272 is a composite number, with divisors 1, 2, 4, 8, 16, 17, 34, 68 ...
Also the converse is true: The decimal expansion of a rational number is either finite, or endlessly repeating. Finite decimal representations can also be seen as a special case of infinite repeating decimal representations. For example, 36 ⁄ 25 = 1.44 = 1.4400000...; the endlessly repeated sequence is the one-digit sequence "0".